Meniscal body extrusion and cartilage coverage in middle-aged and elderly without radiographic knee osteoarthritis

Svensson F, Felson DT, Zhang F, Guermazi A, Roemer F, Niu J, Aliabadi P, Neogi T, Englund M (2019)

Publication Type: Journal article

Publication year: 2019

Journal

European Radiology Springer Verlag (Germany)

Book Volume: 29

Pages Range: 1848-1854

Journal Issue: 4

DOI: 10.1007/s00330-018-5741-3

Abstract

ObjectivesTo determine meniscal extrusion and cartilage coverage on magnetic resonance (MR) images and factors associated with these parameters in knees of middle-aged and elderly persons free from radiographic tibiofemoral osteoarthritis (OA).MethodsSeven hundred eighteen persons, free of radiographic tibiofemoral OA, aged 50-90years from Framingham, MA, USA, were included. We measured meniscal extrusion on 1.5T MRI of both knees to evaluate both medial and lateral meniscal body extrusion and cartilage coverage. We also determined meniscal morphology and structural integrity. The multivariable association with age, body mass index (BMI), and ipsilateral meniscal damage was also evaluated.ResultsThe mean meniscal body extrusion medially was 2.7mm and laterally 1.8mm. The tibial cartilage coverage was about 30% of ipsilateral cartilage surface (both compartments). The presence of ipsilateral meniscal damage was associated with more extrusion in only the medial compartment, 1.0mm in men and 0.6mm in women, and less cartilage coverage proportion, -5.5% in men and -4.6% in women.ConclusionsMean medial meniscal body extrusion in middle-aged or older persons without radiographic tibiofemoral OA approximates the commonly used cutoff (3mm) to denote pathological extrusion. Medial meniscal damage is a factor associated with medial meniscal body extrusion and less cartilage coverage.Key Points center dot Medial meniscal extrusion in middle-aged/older persons without OA is around 3mm.center dot Lateral meniscal extrusion in middle-aged/older persons without OA is around 2mm.center dot Meniscal damage is associated with medial meniscal extrusion and less cartilage coverage.

Authors with CRIS profile

Frank Roemer Institute of Radiology

Involved external institutions

Harvard University US United States (USA) (US) Lund University / Lunds universitet SE Sweden (SE) Boston University US United States (USA) (US)

How to cite

APA:

Svensson, F., Felson, D.T., Zhang, F., Guermazi, A., Roemer, F., Niu, J.,... Englund, M. (2019). Meniscal body extrusion and cartilage coverage in middle-aged and elderly without radiographic knee osteoarthritis. European Radiology, 29(4), 1848-1854. https://dx.doi.org/10.1007/s00330-018-5741-3

MLA:

Svensson, Fredrik, et al. "Meniscal body extrusion and cartilage coverage in middle-aged and elderly without radiographic knee osteoarthritis." European Radiology 29.4 (2019): 1848-1854.

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